What would be the better solution: connect the motor directly or with a gearbox?
Hello,
I have an aeration system for a pond, and I'd like to replace the motor. However, I don't know which would be better.
The aeration is done via a stirrer that just sits in the water and the power supply is via 3 large photovoltaic panels.
Would it be better to screw the motor directly onto the shaft of the mixer or via a gearbox?
The original motor has 12 DC, a tightening torque of approx. 2.8Nm and approx. 11A.
Unfortunately it is difficult to find a similar engine.
Now I was thinking it would be better with a smaller gearbox. My idea would be that the motor would have a higher speed, and the gearbox would reduce the speed, but the torque would be a bit higher, allowing the Quril to rotate in the water.
(1 votes)
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As a result, the propeller characteristic is applied, i.e., which speed is desired and which torque is then applied. In principle, faster motors are smaller, with the same power and thus often the combination of motor/gear are cheaper. However, if the electric motor can drive the qurl directly at the grid frequency (50 Hz ~ 3000 rpm), you do not need a gear. In the case of turbomachines, it does not apply to the tightening torque, but rather the rated duration torque.
It would be about 12V DC
Ok at DC, the network frequency plays no role. But the power in W is in demand (or speed times torque)
Without it is always better, the efficiency then increases.
But if you don’t mind, it’ll work.